AN3150指引优化STM8T14x电容式传感器的接近检测

AN3150指引优化STM8T14x电容式传感器的接近检测

AN3142
Application note
Solution for designing a 400 W fixed-off-time controlled
PFC preregulator with the L6563S and L6563H

Introduction
In addition to the transition mode (TM) and fixed-frequency continuous conduction mode
(FF-CCM) operation of PFC preregulators, a third approach is proposed that couples the
simplicity and affordability of TM operation with the high-current capability of FF-CCM
operation. This solution is a peak current-mode control with fixed-off-time (FOT). Design
equations are given and a practica